Ptb (Paper Transfer Belt) Unit; Ptb Unit Overview - Samsung MultiXpress K7 Series Service Manual

A3 mono copier

Table of Contents

2. Product Specifications and Description

2.5.4. PTB (Paper Transfer Belt) Unit

Paper Transfer Belt moves the paper.

The charged toner on drum is moved to the paper by the transfer roller in PTB unit. The rubber belt in PTB unit removes the

static of the paper and separates the paper from the drum. So, paper can move into the paper path.

This process is done with rotation of the PTB. The rotation is driven by the friction between the drive roller and PTB.

To The arrow above the C and M drums on the diagram shows the direction of ITB rotation. The rotation is made by

the friction between the drive roller and transfer belt. For this process, the drive roller and guide roller provides proper

tension to block slip.

There are 1 actuator and 2 photo sensors. An actuator recognizes the paper path and controls the paper speed for stable

image quality.

Transfer Roller

Drive Roller

Guide Roller

PHOTO INTERRUPTOR

Cleaning Blade

Guide-Waste Toner